endian check capability

repl work in progress
cleanup

2 files changed, 17 insertions, 0 deletions

diff --git a/util/goodies.h b/util/goodies.h
index 7c38f8d1e93..a400a39b280 100644
--- a/util/goodies.h
+++ b/util/goodies.h
@@ -199,3 +199,18 @@ inline bool endsWith(const char *p, const char *suffix) {
 	return strcmp(p + a - b, suffix) == 0;
 }
 
+#include "boost/detail/endian.hpp"
+
+inline unsigned long swapEndian(unsigned long x) { 
+	return 
+		((x & 0xff) << 24) |
+		((x & 0xff00) << 8) |
+		((x & 0xff0000) >> 8) |
+		((x & 0xff000000) >> 24);
+}
+
+#if defined(BOOST_LITTLE_ENDIAN)
+inline unsigned long fixEndian(unsigned long x) { return x; }
+#else
+inline unsigned long fixEndian(unsigned long x) { return swapEndian(x); }
+#endif
diff --git a/util/util.cpp b/util/util.cpp
index 51fb7dfc7f7..c78767f3a69 100644
--- a/util/util.cpp
+++ b/util/util.cpp
@@ -68,5 +68,7 @@ struct UtilTest {
 		assert( endsWith("abcde", "de") );
 		assert( !endsWith("abcde", "dasdfasdfashkfde") );
 
+		assert( swapEndian(0x01020304) == 0x04030201 );
+
 	}
 } utilTest;